The Tetra is a compact dishwasher from Heatworks that can clean dishes within a matter of minutes using just a gallon of water. The dishwasher has its own water reservoir, meaning that no plumbing is required for the appliance. The appliance relies on Heatworks' patented Ohmic Array Technology, which uses graphite electrodes and advanced electronic controls to instantly heat the water, avoiding rust problems that can occur in metal heating rods found in traditional plumbing systems. The Tetra is expected to be available in the second quarter of 2019 for $399.